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Reliability
The City of Shasta Lake practices cost-effective management and consistent implementation of reliability investments and initiatives critical to maintaining and/or improving customer satisfaction and system reliability.  The City strives to choose the most cost effective discretionary projects/practices with the greatest benefit to cost ratio to improve reliability.


Reliability Projects and Practices:

  • Aggressive tree trimming to minimize tree related outages
  • Installed New SCADA Master w/ alarm notification
  • Mitigate recurring outages by employing such things as squirrel transformer bushing cover-ups
  • Advanced Meter Infrastructures so we are notified of an outage as soon as possible
  • Fusing Distribution tap lines so the protection zones are more localized
  • Install additional line reclosing devices to keep the most customers on when we have an event
  • Implemented a new mobile electronic inspection program to track and triage issues in the electric distribution system.


Shasta Lake Reliability Indices:

   SAIDI  SAIFI  CAIDI  ASAI  
DATA SOURCE
NORTH AMERICAN MEDIAN
90
1.1 81.6  - IEEE STANDARD 1366-1998
PG&E (COMPANY WIDE)
 130.0  0.97 134.7
 - CPUC (R.96-09-045) DATED 8/12/16
PG&E (NORTH VALLEY ONLY)
 479.6  1.79  268.3  - CPUC (R.96-09-045) DATED 8/12/16
CITY OF SHASTA LAKE (2013)
 50.5 0.69 73.5  99.990% 2013 CALCULATIONS
(NO WEATHER EXCLUSIONS)
CITY OF SHASTA LAKE (2014)
30.8
0.47
65.6
99.994%
2014 CALCULATIONS
(NO WEATHER EXCLUSIONS)
CITY OF SHASTA LAKE (2015)
119.7
  0.71 168.9
99.977%
2015 CALCULATIONS
(NO WEATHER EXCLUSIONS)
CITY OF SHASTA LAKE
(2016)
 87.6 0.37 234.9 99.983% 2016 CALCULATIONS
(NO WEATHER EXCLUSIONS)


TABLE TERMS

  • SAIDI - This term represents the average number of outage minutes (due to sustained outages) per customer served.
  • SAIFI - This term represents the average number of interruptions (due to sustained outages) per customer served.
  • CAIDI - This term gives the average outage duration that any given customer would experience (restoration time).
  • ASAI - This term is the ratio of the total number of customer hours that service was available to the number of hours in a year.




City of Shasta Lake • 1650 Stanton Drive • Shasta Lake, CA 96019 • Phone: 530-275-7400 • Fax: 530-275-7414 "Equal Opportunity Provider, and Employer"
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